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Solder Alloy 131 vs. S44700 Stainless Steel

Solder alloy 131 belongs to the otherwise unclassified metals classification, while S44700 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is solder alloy 131 and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
210
Elongation at Break, % 47
23
Poisson's Ratio 0.39
0.27
Shear Modulus, GPa 14
82
Tensile Strength: Ultimate (UTS), MPa 31
600

Thermal Properties

Latent Heat of Fusion, J/g 46
300
Melting Completion (Liquidus), °C 180
1460
Melting Onset (Solidus), °C 180
1410
Specific Heat Capacity, J/kg-K 190
480
Thermal Expansion, µm/m-K 25
11

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 11
3.6
Embodied Energy, MJ/kg 180
49
Embodied Water, L/kg 940
180

Common Calculations

Stiffness to Weight: Axial, points 2.4
15
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 1.0
21
Strength to Weight: Bending, points 2.5
20
Thermal Shock Resistance, points 2.4
19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0.2 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0 to 0.080
0 to 0.15
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
64.9 to 68.5
Lead (Pb), % 35.5 to 37.3
0
Manganese (Mn), % 0
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 0 to 0.010
0 to 0.15
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.2
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 62.5 to 63.5
0
Zinc (Zn), % 0 to 0.0010
0